TY  - JOUR
AU  - I. M. Burkin
TI  - A frequency criterion for the orbital stability of limit cycles of the second kind
JO  - Differencialʹnye uravneniâ
PY  - 1993
SP  - 1061
EP  - 1063
VL  - 29
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1993_29_6_a17/
LA  - ru
ID  - DE_1993_29_6_a17
ER  -